162797839 has 4 divisors (see below), whose sum is σ = 166768560. Its totient is φ = 158827120.

The previous prime is 162797819. The next prime is 162797849. The reversal of 162797839 is 938797261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938797261 = 5393 ⋅174077.

It is a cyclic number.

It is not a de Polignac number, because 162797839 - 2⁵ = 162797807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162797809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985299 + ... + 1985380.

It is an arithmetic number, because the mean of its divisors is an integer number (41692140).

Almost surely, 2^162797839 is an apocalyptic number.

162797839 is a deficient number, since it is larger than the sum of its proper divisors (3970721).

162797839 is an equidigital number, since it uses as much as digits as its factorization.

162797839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970720.

The product of its digits is 1143072, while the sum is 52.

The square root of 162797839 is about 12759.2256426478. The cubic root of 162797839 is about 546.0296322703.

The spelling of 162797839 in words is "one hundred sixty-two million, seven hundred ninety-seven thousand, eight hundred thirty-nine".